From low devil to High class demon (Tensura x Highschool dxd x reader)

(Y/n) a low class devil under the Rias gremory household who was casted aside for the newest member Issei hyodou. His master Rias gremory expelled (y/n) from the peerage deeming him too weak for her peerage. Will (y/n) seek revenge on his former master.